* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.w {
    width: 80%;
    margin: 0 auto;
}

a {
    text-decoration: none;
    color: whitesmoke;
}

em,
i {
    font-style: normal;
}

ul {
    list-style: none;
}

img {
    border: 0;

}

nav {
    display: flex;
    width: 100%;
    height: 50px;
    background-color: rgb(22, 22, 22);
    justify-content: space-between;
    position: fixed;
    right: 0;
    left: 0;
    z-index: 1030;
}

nav .nav-1 ul,
nav .nav-2 ul
{
    display: flex;
    line-height: 50px;
}

nav .nav-1 ul li a{
    margin: 0 30px;
    color: rgb(152, 152, 152);
}

nav .nav-1 ul li a:hover {
    color: white;
}

nav .nav-2 ul li i {
    margin: 0 20px;
    font-size: 30px;
    color: rgb(152, 152, 152);
    cursor: pointer;
}

nav .nav-1-li4 {
    color: rgb(152, 152, 152);
    cursor: pointer;
}

nav .nav-2 ul li i:hover,
bav .nav-1-li4:hover {
    color: white;
}

nav .nav-2 ul #input {
    display: none;
    padding: 10px;
    outline: none;
    position: absolute;
    top: 20px;
    right: 150px;
}

nav .nav-1 .li2 {
    background-color: rgb(152, 152, 152);
}

nav .nav-1 .li2 a {
    color: #fff;
}

body {
    position: relative;
    top: 0;
    left: 0;
}

.support {
    display: none;
    position: absolute;
    top: 50px;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: rgba(255, 255, 255, .6);
}

.support-1 {
    width: 200px;
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.support-1 h4 {
    cursor: pointer;
}

.support-1 h4:hover {
    color: #fff;
}

header {
    width: 100%;
    height: 200px;
    background-color: #000;
}

header .header-1 {
    width: 100%;
    height: 100px;
}

header .header-2 {
    width: 100%;
    height: 100px;
    color: #fff;
}

header .header-2 h1 {
    margin-left: 40px;
    font-size: 40px;
}

header .header-2 h3 {
    margin-top: 10px;
    margin-left: 40px;
    font-size: 16px;
    font-weight: 100;
}

header .header-2 i {
    margin-left: 10px;
    color: #E46600;
}

.content {
    width: 100%;
    margin: 0 auto;
    height: 1640px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.content div {
    width: 272px;
    height: 253px;
    margin-top: 20px;
    border: 1px solid #888;
    box-shadow: 1px 0px 20px 0px #999;
}

.content div img {
    width: 100%;
    height: 153px;
}

.content div h4,
.content div em {
    color: #000;
    margin: 5px 0 15px 5px;
}




































footer {
    width: 100%;
    height: 450px;
    background-color: #000;
    background-position: bottom;
    background-size: cover;
}

.footer-1 {
    position: relative;
    top: 40px;
    left: 0;
    width: 100%;
    height: 175px;
    border-top: 1px solid #888;
    border-bottom: 1px solid #888;
}

.contact-us {
    margin: 70px auto;
    width: 400px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.footer-1 img {
    width: 50px;
    height: 50px;
}


.footer-2 {
    position: relative;
    top: 50px;
    left: 0;
    width: 100%;
    text-align: center;
    padding: 0 30px 0 30px;

}

.footer-2 h2 {
    color: #fff;
    margin-top: 10px;
    margin-bottom: 20px;
    font-size: 16px;
}

.footer-2 a {
    font-size: 12px;
    color: #999;
}

.footer-2 a:hover {
    color: #fff;
}

.footer-2 .p-2 {
    font-size: 14px;
    color: #999;
}

